{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "734009",
    "entityType": "User",
    "nonce": "0xcd6a1ebbc91265632df2a482aba9bbc6842b95c3e83d5929c981e8bb24a9dc49",
    "signature": "0xbd10b3a3b7e141ec912c157fecc4e70a4cfc0f084a5e2e08f5eba2001569d5b770e123686f8420172f339bcce14f8f29fcfa756fc5d80d83ff8c1f8824b1e4b61b",
    "signer": "0xd82c46a7AceA4E682FdF73597E02e8f442883CfA",
    "userId": "400115778"
  }
}